- #1
Joe626
- 14
- 0
sorry, no specific homework question, although it is related to my homework in general. I don't understand what makes an image real or virtual.
thanks for the help :)
joe
thanks for the help :)
joe
Virtual images are formed by light rays that appear to come from a certain point behind the mirror or lens, while real images are formed when light rays physically converge at a point in front of the mirror or lens. Real images can be projected onto a screen, while virtual images cannot.
To determine if an image is virtual or real, you can use a simple test known as the "finger test." Place your finger in front of the mirror or lens between the object and the mirror/lens. If the image of your finger appears to be behind the mirror/lens, the image is virtual. If the image of your finger appears to be in front of the mirror/lens, the image is real.
No, this is not always the case. The orientation of an image depends on the position of the object and the type of mirror or lens used. For example, a concave mirror can produce both virtual and real images that are either upright or inverted.
Yes, real images can be formed by a diverging lens. However, they are always smaller than the object and located on the same side of the lens as the object. This type of image is called a virtual image.
Virtual and real images have various practical applications, such as in telescopes and microscopes. Real images are also used in photography and cinematography. Additionally, virtual images are used in rearview mirrors and in the design of periscopes and other optical instruments.